Notary Public (Notarial Services Attorney) for BOI · Board of Investment 🏛️ — corporate clients include MNCs, listed companies, and foreign JVs needing parent-company papers valid in Thailand.
Foreign parent-company documents for BOI applications need Apostille or Embassy Legalization + certified Thai translation before filing at OSOS Chamchuri — B2B work differs from personal cases: corporate notarization, state-of-registration Apostille, and DBD/BOI/EECO-accepted Thai translations are non-negotiable.
2,300+ BOI projects approved annually · สอบถามเจ้าหน้าที่เพื่อรับใบเสนอราคาB+ investment value. NYC Visa supports Bangkok-based law firms and Big-4 corporate teams; we know the submission formats expected by Board of Investment Thailand, One Stop Service Center (OSOS) at Chamchuri Square.
Frequent BOI · Board of Investment documents: Certificate of Incorporation (parent company), Board Resolution to invest in Thailand, Power of Attorney, Passport of Directors / Authorized Persons, Audited Financial Statement (3 yrs) — packed with binder + Thai cover letter.
Workflow: (1) Legal team shares drafts (2) We coordinate origin-country Notary (3) Apostille or Embassy Legalization (4) DHL tracked shipping (5) MFA Thailand + Thai Notary translation (6) Submission to Board of Investment Thailand, One Stop Service Center (OSOS) at Chamchuri Square.
Legal team shares the doc list + drafts
Coordinate Notary Public in parent jurisdiction
Apostille (Hague) or Embassy Legalization
DHL/FedEx tracked + insured
Chaeng Wattana + certified Thai translation
Submission to Board of Investment Thailand, One Stop Service Center (OSOS) at Chamchuri Square or DBD
Hague members (US, UK, JP, DE, FR, etc.) use Apostille; non-members (TH, CN, AE) need Embassy Legalization.
3–6 weeks total — origin Notary 3–5 d, Apostille 5–10 d, shipping 3–5 d, MFA Thailand + Notary 4–7 d.
Yes — templates accepted by DBD/BOI/EECO for director appointment, investment authorization, bank account opening.
Pricing is quoted per case (ask our staff) per pack — corporate cases quoted per scope. Email corporate@nycvisa for NDA + quote.
Yes — Thai SET-listed companies sending docs to US/EU/JP for M&A, IPO, JV formation.
Smart Visa (T/I/E/S/O), BOI Visa & Work Permit, Non-Immigrant B (BOI), LTR-WP
Notary Public (Notarial Services Attorney) for BOI · Board of Investment 🏛️ — corporate clients include MNCs, listed companies, and foreign JVs needing parent-company papers valid in Thailand.
First-party answers on Thai work authorisation: the standard Department of Employment route, BOI and IEAT channels for skilled experts, US company rights under the Treaty of Amity, and the APEC Business Travel Card for Thai nationals — including which supporting documents must be translated and legalised first. (19+ search topics covered)
Need your documents reviewed or your case assessed? Ask our team by phone, LINE, or email. We reply within two hours during business hours (Mon–Sat 9:00–18:00 ICT).
Work permits are issued by the Department of Employment and are tied to the employer, position and workplace. Changing job, role or location requires a new filing.
Prefer not to handle the queues yourself, or worried about a rejection? Send us photos of your documents for a free pre-check. We handle the full chain — obtaining certified copies, translation, certification and submission — and keep you updated at each step. Reach us on LINE, phone or email during business hours.
Different employer types use different channels, and each channel pairs with a different visa category.
| Route | When to use | Certifying authority | Approx. duration | Rejection risk |
|---|---|---|---|---|
| Standard filing with the Department of Employment | The employer is an ordinary Thai company without BOI promotion | Department of Employment, Ministry of Labour | Variable, driven by how complete the employer's file is | Thai-to-foreign staff ratios and registered capital not meeting thresholds is the common refusal ground |
| BOI-promoted company channel | The employer holds a promotion certificate and the position is on the approved list | BOI together with the Immigration Bureau and Department of Employment | Generally faster than the standard route, still variable | A position that differs from the approved list requires an amendment first |
| Conditional or short-term work authorisation | Short assignments or job types covered by specific published rules | Department of Employment under the notification in force | Shorter than a full application | Working beyond the authorised scope is an offence even when a permit exists |
Timelines above are practical estimates from live casework and can change with each authority's policy; confirm with the receiving authority before booking travel. If you would rather not test routes by trial and error, our advisers can assess which route fits your case.
Our team has worked on cross-border documents, certified translation and government liaison since 2015. Most rejections we see are not caused by missing paperwork but by choosing the wrong route on day one, so we always start with a case assessment.
We look at your destination, purpose and deadline, then tell you which certification route applies — and which steps you can skip.
Name spelling, consistency across documents, document age and translation format are checked before anything reaches a counter.
We sequence the steps around your appointment or travel date and flag bottlenecks in advance.
We read the refusal reasons, identify the underlying cause, and plan a resubmission that answers what the authority asked for.
Rather not learn by trial and error? Send your case details and document photos for a review — reach us on LINE, phone or email during business hours.
Requests described as notarisation are often really consular legalisation of a government document or certification of a translation. Clarifying this first avoids repeated work.
A certified true copy must be compared against the original in person. If the original is abroad or lost, obtain a certified reissue from the issuing authority first.
Signature certification confirms the signature was made in person, so bring a valid original ID card or passport and do not sign the document in advance.
What happens after notarisation differs by country and receiving authority. Some accept the attorney's certification alone; others require further authentication by the Department of Consular Affairs and the destination embassy. Naming the country and authority up front lets us sequence the work correctly.
Thailand is not a party to the Apostille Convention. Documents for overseas use follow authentication by the Department of Consular Affairs and the destination embassy instead.
Many files are rejected because they stop at the attorney's certification when the recipient also required consular and embassy authentication. Plan the full chain from the beginning.
Certification covers facts observed in person — that the person signed, or that a copy matches the original. It does not certify that the statements are true or legally effective abroad.
It does not. Certification is performed by a Notarial Services Attorney registered with the Lawyers Council of Thailand. If your recipient specifically requires a Notary Public, confirm in advance that they accept this form of certification.
Requirements differ by authority and destination country and can change. Confirm current conditions with the receiving authority, or ask our team by phone, LINE or email.
One document set often moves through several stages — translation, notarial certification, legalization and finally a visa filing. The links below follow that real sequence.
Authority requirements change. Verify with the receiving authority before filing, or ask our team by phone, LINE or email.
Thailand has no notary public in the common-law sense. Notarization is performed by a lawyer registered as a Notarial Services Attorney with the Lawyers Council of Thailand. Verify the registration, confirm the receiving party accepts a Thai notarial attestation, and check whether the document also needs consular legalization afterwards.
| Option | Best for | What to know |
|---|---|---|
| Law firm notarial service | Contracts, affidavits and corporate documents | Confirm the specific attorney performing the act is registered. |
| Your own embassy in Bangkok | Documents for your home country that require its own consular officer | Appointment availability and accepted act types vary by embassy. |
| Notarization plus legalization package | Documents going to a foreign authority | Ask whether the legalization step is quoted separately. |